芦荟属植物叶内蒽醌类物质的分布与其化学防御的关系

应用生态学报 ›› 2002, Vol. ›› Issue (11): 1381-1384.

芦荟属植物叶内蒽醌类物质的分布与其化学防御的关系

沈宗根^1,3, 李景原², 胡正海²

1. 常熟高等专科学校生物学与工程系, 常熟, 215500;
2. 西北大学植物研究所, 西安, 710069;
3. 本古里安大学斯坦博克沙漠研究所植物引种园, 以色列

收稿日期:2001-07-09 修回日期:2001-09-07 出版日期:2002-11-15
通讯作者: 沈宗根,男,1962年生,博士,副教授,主要从事结构植物学与植物化学研究,发表论文30多篇.E-mail:shenzonggen@hotmail.com
基金资助:
教育部留学回国人员科研启动基金;陕西省自然科学研究资助项目(2001SM21).

SHEN Zonggen^1,3, LI Jingyuan and HU Zhenghai ²

1. Life Science and Enginnering Department of Changshu College, Changshu 215500;
2. Institute of Botany, Northwest University, Xian 710069;
3. Unit for Ecophysiology and Introduction of Desert Plants, Wyler Department of Drylands Agriculture, Jacob Blaustein Institute for Desert Research, Ben Gurion University of the Negev, Sede Boker Campus, 84990 Israel

Received:2001-07-09 Revised:2001-09-07 Online:2002-11-15

摘要/Abstract

摘要： 芦荟属植物是一类生长在干旱或半干旱沙漠环境中的肉质植物.木立芦荟和海莱芦荟的肉质叶的植物化学研究结果表明,叶内含高浓度的芦荟素、高那特芦荟素、芦荟苦素和芦荟宁等蒽醌类物质.其中,海莱芦荟整叶的蒽醌类物质总含量占其泌出物干重的44.89%.两种芦荟叶内蒽醌类物质的分布有共同的规律,即幼叶的含量高于老叶;叶上部的含量高于中、基部;叶缘则高于叶的中央.但由于木立芦荟和海莱芦荟的个体形态不同,蒽醌类物质的分布在种间还存在各自的特点.根据实验结果推测,蒽醌类物质在芦荟属植物体内的累积和分布与其化学防御机制有关

关键词: 木立芦荟, 海莱芦荟, 芦荟素, 芦荟宁, 化学防御

Abstract: Aloe plants are the succulents mainly distributed in arid or semi arid desert in South Africa.TLCanalysis indicated that Aloe arborescens and Aloe hereroensis contained the high concentration of phenolic derivative metabolites, anthraquinones such as barbaloin, homonataloin, aloeresin and aloenin.In younger leaf, L3 of A. hereroensis, the average content of 4 anthraquinones reached 44.9% of the dry weight of exudates. The similar distribution of the anthraquinones in the two species were found, which showed that the youngest leaves had the highest content, the top part of each leaf had the highest content,and the basal part had the lowest content. Along leaf margin, the content was higher than that of central parts. However, some different distributions were also revealed and compared between the two species. It was inferred that the special distribution of anthraquinones in Aloe was a chemical defense strategy for protection themselves.

中图分类号:

Q143.3

沈宗根, 李景原, 胡正海. 芦荟属植物叶内蒽醌类物质的分布与其化学防御的关系[J]. 应用生态学报, 2002, (11): 1381-1384.

SHEN Zonggen, LI Jingyuan and HU Zhenghai . [J]. Chinese Journal of Applied Ecology, 2002, (11): 1381-1384.

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